I've read your request in the workshop twice now and still unsure how you want the banner to look. Out of the examples you mentioned, Nidoqueen seems to be a nice pick as a mon literally standing in a bazaar stand since it has been UU most of its existence (and the gens it wasn't it was still usable there), so that's one approach off the top of my head. If you want your description to work, I need more details.

In hindsight it was a complicated request and gave nothing in terms of details. Sorry about that.

Yeah if you feel like Nidoqueen actively being behind the bazaar stand works best, then definitely go for it. Kangaskhan, Moltres, Heracross, and Suicune as customers perhaps? Or is there a way to get them all behind the stand? I just need it to feel rustic and aged.